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  • bitdays.co.kr/2021/02/23/%ea%b8%80%eb%a1%9c%eb%b2%8c-%ec%a0%84%ea%b8%b0-%ed%86%b5%ec%8b%a0%ec%9d%98-%eb%a1%9c%eb%b4%87-%ed%94%84%eb%a1%9c%ec%84%b8%ec%8a%a4-%ec%9e%90%eb%8f%99%ed%99%94-%ec%8b%9c%ec%9e%a5-%ed%81%ac%ea%b8%b0/ (port 80)